XML 30 R17.htm IDEA: XBRL DOCUMENT v3.22.0.1
Other Intangibles
 12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Other Intangibles
OTHER INTANGIBLES

Core deposit intangibles and other intangibles are recorded on the acquisition date of an entity. The Hoosier acquisition on April 1, 2021 resulted in a customer relationship intangible of $2,247,000. Details regarding the Hoosier acquisition are discussed in NOTE 2. ACQUISITIONS of these Notes to Consolidated Financial Statements.

The carrying basis and accumulated amortization of recognized core deposit and other intangibles are noted below.
 20212020
Gross carrying amount$102,396 $102,396 
Other intangibles acquired2,247 — 
Accumulated amortization(79,168)(73,421)
Total core deposit and other intangibles$25,475 $28,975 
 

The core deposit intangibles and other intangibles are being amortized primarily on an accelerated basis over their estimated useful lives, generally over a period of two to ten years. Amortization expense for the years ended December 31, 2021, 2020 and 2019, was $5.7 million, $6.0 million and $6.0 million, respectively.

Estimated future amortization expense is summarized as follows:
Amortization Expense
2022$5,402 
20235,145 
20244,510 
20253,754 
20262,948 
After 20263,716 
 $25,475